How is hydrogen used to generate electricity in a pem fuel cell?
hydrogen combusts with oxygen to produce heat, which is used to turn a turbine that produces electricity.
hydrogen atoms are separated into protons and electrons, and the movements of these particles generate electricity.
hydrogen combusts with oxygen to produce water, and the flow of the water is used to turn a turbine and produce electricity.
hydrogen atoms are separated into protons and electrons, which combine with oxygen to produce water that is then heated in a solar collector to produce electricity.